The Orioles had one of the best bullpens in the major leagues this year, compiling a fifth-ranked 3.00 ERA.

But they’re still thinking about making some pretty significant upgrades to it this winter via free agency.

According to Dan Connolly of the Baltimore Sun, the O’s have interest in a reunion with setup man Koji Uehara, who was traded away to the Rangers in mid-2011 and spent the entire 2012 season in Texas. “He’s on our list, we like him,” said Orioles executive vice president Dan Duquette. “He’s been here before.”